/**
 * 
 */
package t4j.typeinfo;

/**
 * @author sz
 *
 * create time：2012-12-14
 */
public class BoundedClassReferences {
public static void main(String[] args) {
	Class<? extends Number> bounded = int.class;
	
	bounded = double.class;
	
	bounded = Number.class;
}
	
}
